涡流发生器结构优化及传热性能数值模拟  

Structural Optimization and Numerical Simulation of Heat Transfer Performance of Vortex Generator

作　　者：耿直 韩宇帆 李一帆 陈柯宇 江雨晨 李仁凤 曹智焜 孙千胜 GENG Zhi;HAN Yufan;LI Yifan;CHEN Keyu;JIANG Yuchen;LI Renfeng;CAO Zhikun;SUN Qiansheng(School of Aero Engine,Zhengzhou University of Aero,Zhenzhou 450046,China)

机构地区：[1]郑州航空工业管理学院航空发动机学院,郑州450046

出　　处：《能源研究与管理》2025年第1期159-164,共6页Energy Research and Management

基　　金：教育部教指委高等学校能源动力类教学研究与实践项目(NSJZW2021Y-99);河南省科技攻关项目(242102240053);河南省研究生教育改革与质量提升工程项目(YJS2024JD47);河南省高等学校重点科研项目计划(25A480002);教育部高等教育司产学合作协同育人项目(231106707135126);郑州航院研究生质量提升工程项目(2024YJSJG18);郑州航院校级大学生创新项目(202410485069)。

摘　　要：为应对全球能源需求增长与“双碳”目标挑战,针对涡流发生器进行强化换热研究以提高能源利用效率。通过CFD(computational fluid dynamics,计算流体动力学)仿真,对传统涡流发生器的结构和内部流动特性及其换热性能进行了优化研究。以PEC(performance evaluation criterion,性能评价准则)作为换热性能指标,对涡流发生器进行结构优化及分析。结果表明,优化后的涡流发生器对流体流速提升175%,扰流效果更好,换热性能更优,且涡流发生器与壁面夹角增大,PEC因子先增大后减小,在夹角60°处PEC因子最高,此时随着进口流速增加PEC因子增加。在涡流发生器与壁面夹角60°,流体流速3 m/s时,优化型涡流发生器的PEC因子平均值较传统型提高16.8%,强化换热效果显著。To address global energy demand growth and the"dual-carbon"goal challenges,research on heat transfer enhancement of vortex generators is done to boost energy efficiency.CFD simulation is used to optimize the structure,inte-rnal flow characteristics,and heat transfer performance of traditional vortex generators.PEC serves as the heat transfer performance index for structural optimization and analysis.Results show that the optimized vortex generator increases fluid velocity by 175%,with better flow-disturbing and heat-transfer performance.As the angle between the generator and the wall rises,the PEC factor first increases then decreases,peaking at 60°.At this angle,the PEC factor increases with inlet flow velocity.When the angle is 60°and fluid velocity is 3 m/s,the average PEC factor of the optimized generator is 16.8%higher than the traditional one,indicating remarkable heat transfer enhancement.

关 键 词：涡流发生器 矩形管 数值模拟 结构优化 强化换热 

分 类 号：TK124[动力工程及工程热物理—工程热物理]